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Tags / Keywords solid waste management
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Tags / Keywords volcanic deposition
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Organics Factsheet: Windrow Composting

SPREP Publications, Waste Management and Pollution Control

Available Online

Controlled aerobic decomposition of organic materials in windrows, turned with machinery. December 2022

Organics Factsheet: Small-scale Composting

SPREP Publications, Waste Management and Pollution Control

Available Online

Controlled aerobic decomposition of organic materials in small piles at households and communities, turned manually. December 2022

JPRISM II Solid Waste Management Country Profile - Federated States of Micronesia

SPREP Publications, Waste Management and Pollution Control

Available Online

This document provides an overview of the current state of waste management in the Federated States of Micronesia. Key data from this document includes: "Volume of waste managed by waste management services in the FSM (tons/day)","Composition of Household Waste (weight base)", "Solid Waste Management Strategies", "volume of waste managed by waste management services", "Waste collection ", "waste disposal & waste recycling", "container deposit scheme recycling", "waste management laws & regulations", and "recommendations for the improvement of Solid Waste Management in the Federated States of Micronesia. All data was compiled by JICA/JPRISM experts with the help of colleagues from Federated States of Micronesia.

JPRISM II Solid Waste Management Country Profile - Republic of the Marshall Islands

SPREP Publications, Waste Management and Pollution Control

Available Online

This document provides an overview of the current state of waste management in the Republic of the Marshall Islands. Key data from this document includes: "waste generation per day", "waste composition at landfill", "volume of waste managed by waste management services", "Waste collection ", "waste disposal & waste recycling", "container deposit scheme recycling", "waste management policies & Acts", and "recommendations for the improvement of Solid Waste Management in the Republic of the Marshall Islands. All data was compiled by JICA/JPRISM experts with the help of colleagues from Republic of the Marshall Islands.

JPRISM II Solid Waste Management Country Profile - Papua New Guinea

SPREP Publications, Waste Management and Pollution Control

Available Online

This document provides an overview of the current state of waste management in Papua New Guinea. Key data from this document includes: "household waste generation and composition in Port Moresby", "Waste collection fees and tipping fees in NCDC", "waste disposal & waste recycling", "waste management policies & Acts", and "recommendations for the improvement of Solid Waste Management in the Pacific Island countries". All data was compiled by JICA/JPRISM experts with the help of colleagues from Papua New Guinea.

JPRISM II Solid Waste Management Country Profile - Tonga

SPREP Publications, Waste Management and Pollution Control

Available Online

This document provides an overview of the current state of waste management in Tonga. Key data compiled in this document includes: "Waste Management Policies & Regulations", "Waste Collection and Transfer", "Waste Final Disposal", "Waste Recycling", "Breakdown of WAL revenue (July 2018–March 2019)" and recommendations to improve solid waste management in Tonga.

JPRISM II Highlights-Vanuatu

Waste Management and Pollution Control

Available Online

This document present the highlights of the JPRISM II activities conducted in Vanuatu during the project period (2017-2022) including the national and regional outputs of the project.

Container Deposit Schemes in the Pacific Islands - A Guide for Policy Makers

SPREP Publications, Waste Management and Pollution Control

Available Online

Recycling of waste materials in the Pacific Islands is an economic challenge. The islands are remote, populations and quantities of material generated as waste are comparatively small; shipping costs are high and the recyclable materials will have to be exported for industrial processing.

Volcanic Ash as a Sustainable Binder Material: An Extensive Review

Environmental Monitoring and Governance

Available Online

Etxeberria, Miren

Játiva, Andrés

Ruales, Evelyn

The construction industry is affected by the constant growth in the populations of urban areas. The demand for cement production has an increasing environmental impact, and there are urgent demands for alternative sustainable solutions. Volcanic ash (VA) is an abundant lowcost material that, because of its chemical composition and amorphous atomic structure, has been considered as a suitable material to replace Portland cement clinker for use as a binder in cement production. In the last decade, there has been interest in using alkali-activated VA material as an alternative material to replace ordinary Portland cement. In this way, a valuable product may be derived from a currently under-utilized material. Additionally, alkali-activated VA-based materials may be suitable for building applications because of their good densification behaviour, mechanical properties and low porosity. This article describes the most relevant findings from researchers around the world on the role of the chemical composition and mineral contents of VA on reactivity during the alkali-activation reaction; the effect of synthesis factors, which include the concentration of the alkaline activator, the solution-to-binder ratio and the curing conditions, on the properties of alkali-activated VA-based materials; and the mechanical performance and durability properties of these materials.

The Use of Volcanic Powder as a Cement Replacement for the Development of Sustainable Mortars

Environmental Monitoring and Governance

Available Online

Letelier, Viviana

Ortega, Jose Marcos

Tremino, Rosa Maria

et al

Currently, reduction of environmental e ects of the cement industry is an issue of global interest and one of the alternatives is to replace clinker with additions such as volcanic powder. The purpose of this work is to study the influence of up to 400 hardening days of volcanic powder, obtained from the last eruption of the Calbuco volcano (Chile), on the pore structure, mechanical performance, and durability-related properties of mortars which incorporate up to 20% volcanic powder as a substitution for clinker. In addition, an evaluation of greenhouse gases emissions was performed in order to quantify the possible environmental benefits of incorporating the volcanic powder in the mortars. The results obtained indicated that mortars with contents of 10% and 20% of volcanic powder had adequate service properties and improved all durability-related properties overall as compared with those noted for ordinary Portland cement. Additionally, the use of up to 20% volcanic powder makes it possible to reduce the CO2 emissions of mortars by almost 20%, demonstrating the advantages of incorporating this addition in mortars.

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